Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '713cca872eff65a121c214207be80c47d5b78589e857aceb6e491861730d8c3b' 
  AND token = 'bgLA97WabK3CHJ2b7BLZT8VlFHYJLNDYTGFfx29JCf0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00085

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}